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Don't know WHO thought that one up, about the bolts loosening up or "stripping " all by themselves. Probably some inventive mechanic who messed up a job and told that to a customer to cover his butt. No way, never seen this. The cam is pretty hard stuff, course those bolts are too, but would hold out hope that new bolts, which I'd get from a dealer or MB parts specialist like this site, will fix it. I agree with Waybomb though, I wouldn't trust any of the repair inserts in this particular position, there just isn't enough depth of material in the front flange of the camshaft to use these, and it's too critical of an area. I'd go oversized, not repair insert. And if you go oversize, get the toughest bolts you can. Any doubt if it was a good repair or not I'd get another camshaft.
Gilly
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